摘要
电子垃圾热解回收会消耗大量的能源,催化热解可降低废电路板和键盘热解过程的活化能。本文采用热重分析方法,选择分子筛催化剂,研究了两种典型电子垃圾组分(废电路板PCB和键盘)在氮气环境中的热解和催化热解特性。热解表观动力学分析表明,废电路板和键盘的热解、催化热解过程分别是一个2级和1级热化学反应,其机理函数分别是G(a)=(1-a)^(-1)和G(a)=-ln(1-a)。
The pyrolysis recovery of electric wastes would consume amounts of energy, and the catalytic technology could reduce the reaction energy of pyrolysis process. In this study, we chose two kinds of zeolites, then the behavior of pyrolysis and catalytic pyrolysis of typical components（printed circuit board and keyboard） of electric wastes were studied in the nitrogen atmosphere with the method of TGA/DTA analysis equipment. Through pyrolysis kinetic analysis, it showed the pyrolysis and catalytic pyrolysis of PCB and keyboard were a two-level and a one-level thermo-chemical reaction which the mechanism fit G（a）=（1-a）-1 and G（a）=-ln（1-a）.
作者
赵凤
李小芳
李爱民
Zhao Feng;Li Xiaofang;Li Aimin(Beijing Jingcheng Environmental Protection Co., Ltd., Beijing 100027, China;Ministry of Education Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environment of Dalian University of Technology, Dalian 116024, China)
出处
《中国资源综合利用》
2018年第5期20-25,共6页
China Resources Comprehensive Utilization
关键词
电子垃圾
催化热解
动力学
节能
electric waste
catalytic pyrolysis
kinetics
energy-saving
